Malicious PDF — malware analysis report

Static analysis result for SHA-256 556c621126c4b6c3…

MALICIOUS

PDF

45.1 KB Created: 2020-08-07 14:57:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 820059314fb883c6ca38ae33543382ab SHA-1: f3dd390580decb5a9c055ac3ca0d7030d7063c02 SHA-256: 556c621126c4b6c324e011c39b19e0b257661e82864950b39e4e449b8c5921f3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'rpa automation anywhere tutorial pdf'. This URL redirects to a known malicious domain, indicating a phishing or redirection attempt.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=rpa+automation+anywhere+tutorial+pdf
    • http://gulede.janinehartley.com.au/uploads/1/3/1/4/131411896/winuzimafoxa.pdf
    • http://files.mgmanawatu.com/uploads/1/3/1/6/131606758/96a015d3c.pdf
    • http://files.avonshairandbeauty.com/uploads/1/3/1/4/131453484/3542301.pdf
    • http://files.healthylifems.com/uploads/1/3/0/8/130813509/mijilowikejavetun.pdf
    • http://wijujitig.possumtrotchristiancamp.org/uploads/1/3/0/7/130775403/d4f209279aa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0645/1094/files/93502393137.pdf
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/javaruxolawizusero.pdf
    • https://cdn.shopify.com/s/files/1/0437/6104/1569/files/remdio_caseiro_para_cseos_amigdalianos.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54748680829.pdf
    • https://cdn.shopify.com/s/files/1/0433/8522/5372/files/metallica_master_of_puppets_guitar_tab_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/noketugepegiweliwuvudiboj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/63545483179.pdf
    • https://cdn.shopify.com/s/files/1/0435/0800/7072/files/kojusat.pdf
    • https://cdn.shopify.com/s/files/1/0433/5098/2821/files/tiwun.pdf
    • https://cdn.shopify.com/s/files/1/0432/4655/1208/files/fuzifimisigedarogufapulot.pdf
    • https://cdn.shopify.com/s/files/1/0431/2206/5557/files/jelovitajepabil.pdf
    • https://cdn.shopify.com/s/files/1/0431/8098/2436/files/twitch_audio_mute_workaround.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000682a.bin
078302be905a1d89299721f0df07d2b1374c997579cbbf79c3aa3c483702078d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x682A 5304 bytes
font_01_sfnt_off00007a23.bin
accef84e28d08690699a6d6156145bf053fe4141df3cb99c855737e54ab9c719		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A23 14568 bytes

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